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15 May, 12:04

You have an investment account that started with $3 comma 000 10 years ago and which now has grown to $6 comma 000. a. What annual rate of return have you earned (you have made no additional contributions to the account) ? b. If the investment account earns 15 % per year from now on, what will the account's value be 10 years from now?

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  1. 15 May, 14:24
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    The correct answer for option (a) is 7.17% and for option (b) is $48,546.69.

    Explanation:

    According to the scenario, the given data are as follows:

    (a) Present value = $3,000

    Future value = $6,000

    Time period = 10 years

    So, we can calculate the annual rate of return by using following formula:

    Rate of return = ((FV : PV) ^1/t - 1)

    = (($6,000 : $3,000) ^1/10 - 1)

    = (2) ^0.1 - 1

    = 1.07177346254 - 1

    =.07177 or 7.17%

    (b) Present value = $12,000

    Rate of interest (r) = 15%

    Time period = 10 year

    So, we can calculate the Future value by using following formula:

    FV = PV * (1+r) ^t

    = $12,000 * (1 + 15%) ^10

    = $12,000 * 4.04555773571

    = $48,546.69
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